Catalyst for synthesizing polyetheramine and preparation method thereof

A catalyst and polyetheramine technology are applied in the field of catalysts for synthesizing polyetheramine and their preparation, which can solve the problems of reactor material and operation safety risks, environmental hidden dangers, high reaction pressure, etc., and achieve non-explosion and environmental friendliness. The effect of improving and suppressing excessive polymerization

Active Publication Date: 2021-08-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, the synthesis of the catalyst uses a strong alkali solution, which has environmental hazards; and in the process of using the catalyst, the reaction pressure is greater than 10MPa, which brings certain risks to the reactor material and operation safety

Method used

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  • Catalyst for synthesizing polyetheramine and preparation method thereof
  • Catalyst for synthesizing polyetheramine and preparation method thereof
  • Catalyst for synthesizing polyetheramine and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 1mol Cu(NO 3 ) 2 ·3H 2 O, 0.2 mol of ruthenium trichloride, 0.25 mol of lanthanum nitrate hexahydrate were dissolved in 200 mol of absolute ethanol at 65° C., and stirred at 200 rpm for 30 min to obtain a metal salt solution. Take 0.5 mol of trimesic acid, dissolve in 230 mol of N,N-dimethylformamide, stir at 200 rpm for 30 min to obtain an organic ligand solution. The organic ligand solution was added to the metal salt solution, stirred at 65°C and 260rpm for 20h, and the product was filtered after cooling down, and washed with N,N-dimethylformamide and absolute ethanol at a volume ratio of 1:1. After washing, it was placed in a room temperature environment of 25° C. to dry naturally for 10 hours, and then subjected to blast drying treatment at 150° C. for 39 hours to obtain a catalyst for synthesizing polyetheramine.

Embodiment 2

[0035] In embodiment 1, metal salt A adopts silver nitrate to replace Cu(NO 3 ) 2 ·3H 2 O, other reaction conditions and material composition remain unchanged, and a catalyst for synthesizing polyetheramine is obtained.

Embodiment 3

[0037] In embodiment 1, metal salt A adopts Cu(NO 3 ) 2 2.5H 2 O instead of Cu(NO 3 ) 2 ·3H 2 O, other reaction conditions and material composition remain unchanged, and a catalyst for synthesizing polyetheramine is obtained.

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Abstract

The invention relates to a catalyst for synthesizing polyetheramine and its preparation method, comprising (1) dissolving metal salt A, metal salt B and metal salt C in an organic solvent, and stirring to obtain a metal salt solution; (2) dissolving the organic compound (3) Add the organic ligand solution into the metal salt solution, after the reaction at a certain temperature, the product is filtered, washed, and dried to obtain the polyetheramine used in the synthesis catalyst. The catalyst of the present invention is prepared by the above-mentioned method of the present invention. The catalyst prepared by the invention has good physical and chemical properties, is formed by complexing and coordinating metal ions and ligands, avoids metal loss, prolongs the service life, and has good application prospects.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a catalyst for synthesizing polyetheramine and a preparation method thereof. Background technique [0002] Polyetheramine (Polyetheramine), also known as amino-terminated polyether, is a class of polyoxyalkylene compounds whose molecular main chain is a polyether skeleton and the end is terminated by an amino group. Most polyetheramines use polyether as the reaction raw material, and through different treatment methods, the terminal hydroxyl groups of polyether polyols are converted into corresponding amino groups or amine groups. Due to the reactivity of the terminal amino or amine groups of the polyether backbone, it can interact with a variety of reactive groups, such as epoxy groups and isocyanate groups. In addition, due to the existence of ether bonds in the polyether chain, it is easily soluble in various organic substances, which greatly broadens th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08G65/325
Inventor 赵亮方向晨吴长安黄新露
Owner CHINA PETROLEUM & CHEM CORP
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